Some way of describing living things changing over generations to better fit their environment.
(, Wed 8 Sep 2021, 12:37, Reply)
"Prominent appendages such as ears are predicted to increase, so we might end up with a live-action Dumbo in the not-so-distant future."
Maybe if she hadn't spent so much time studying animals, she'd have noticed that it came out 2 years ago.
(, Wed 8 Sep 2021, 13:00, Reply)
Or as they say at the creationist museum, God works in mysterious ways
(, Wed 8 Sep 2021, 13:05, Reply)
I was just pointing out a clumsy headline that seemed to go out of its way to avoid the e word, and ended up evoking American Werewolf in London instead.
(, Wed 8 Sep 2021, 18:39, Reply)
The title of the paper this report is based on is Shape-shifting: changing animal morphologies as a response to climatic warming. But then the paper is intended for biologists, who would interpret the title in the context of evolution by natural selection.
(, Wed 8 Sep 2021, 20:00, Reply)
(, Wed 8 Sep 2021, 22:17, Reply)
It's a Newsbeat article aimed at kids, and they're much more likely to read about exciting shapeshifting than boring evolution.
(, Thu 9 Sep 2021, 11:36, Reply)
I read somewhere that evolution takes a little longer than that.
(, Wed 8 Sep 2021, 13:49, Reply)
www.newscientist.com/article/2205025-ancient-roman-air-pollution-caused-climate-change-in-europe/
Quite apart from the climate changing fires, they also polluted the air with heavy metals, especially lead. Not as dense as our lead petrol but they did it for 500 years.
phys.org/news/2019-05-roman-polluted-european-air-heavily.html
(, Wed 8 Sep 2021, 14:20, Reply)
(, Wed 8 Sep 2021, 16:49, Reply)
worked for me. clear your cookies???? (frankly I have no advice. ..like turn it off and on again)
(, Wed 8 Sep 2021, 21:51, Reply)
the ratios of alleles change in response to complex selection pressures, and the organism becomes different to what it was before with each generation, and generally the more profound the change, like global warming, the greater the selection pressure and the faster it moves in one direction, but it always moves regardless. what we think of as species are really just snapshots in time of a continuum, the concept means less with modern understanding of genetics and mutational drift rates
(, Wed 8 Sep 2021, 14:40, Reply)
found it vimeo.com/59304258
in this article
www.campaignlive.co.uk/article/meet-graham-similar-1985-anti-smoking-ad-win-says-cannes-lions-juror/1437572
(, Wed 8 Sep 2021, 16:19, Reply)
I always thought that anti smoking ads were ineffective no matter how scary, and they'd be better of getting a whole bunch of past it celebrities that teenagers parents liked to tell them how cool it is. "sally , put your twitch down for a bleeding minute and watch this ad. That's baddiel and newman promoting malboro. I saw 'em at wembley. that's your mum, ha! What? no, they're not boring, they were massive"
(, Wed 8 Sep 2021, 23:08, Reply)
developed rather large ears and an enormous member down there. The ears do tend to keep my head cool but not by heat dissipation but rather shading my neck and sides of my head. The large member I've not found a good use for but I'm sure something will come up.
(, Wed 8 Sep 2021, 14:47, Reply)
(, Wed 8 Sep 2021, 15:13, Reply)
(, Wed 8 Sep 2021, 15:32, Reply)
Cancer is a often DNA mutation, not an evolution.
(, Wed 8 Sep 2021, 16:46, Reply)
The first Polar bear was a mutation, for example. But it was a mutation that proved helpful towards survival and so eventually the mutation developed into an entire species.
(, Wed 8 Sep 2021, 16:56, Reply)
You need selection as well for evolution to occur Darwin style. Both mutated viruses and cancer cells are subjected to selective forces such as our immune system, which can result in the rise of variants and more aggressive cancer cells.
(, Wed 8 Sep 2021, 17:04, Reply)
(, Wed 8 Sep 2021, 17:52, Reply)
You seem a bit right wing on this issue.
Are you convoluting evolution with speciation?
(, Wed 8 Sep 2021, 18:00, Reply)
Can you stop steering every conversation onto politics please? It's getting very boring. TIA.
(, Wed 8 Sep 2021, 18:27, Reply)
Complaining that X is too political is a bit, er, right wing.
I just checked all my posts on this page, this is the only time I mentioned politics. At a push you could say my contribution to the golf discussion was political, but only if you are inclined to categorise environmental concerns as politics.
I'm worried you might have lost a tiny little bit of your mind.
(, Wed 8 Sep 2021, 18:58, Reply)
I’m yet to be convinced that evolution can take decades rather than millennia, but the moth picture was pretty and its story was interesting too. I’m not going to ask what your point is, for reasons that’ll be abundantly clear to many on here.
(, Wed 8 Sep 2021, 18:42, Reply)
It's pretty obvious that you're convoluting evolution and speciation.
There's no onus on reality to make sense to you. If you open your mind to a fact based world view, your outlook will improve and people will find you more attractive.
(, Wed 8 Sep 2021, 19:10, Reply)
I think if you really applied yourself you'd understand the difference between evolution and speciation and be able to insult me at the same time.
(, Wed 8 Sep 2021, 21:41, Reply)
www.nature.com/articles/news.2009.1089
And lizards too:
biology.ucdavis.edu/news/hurricane-study-shows-natural-selection-lizards
(, Wed 8 Sep 2021, 19:27, Reply)
But I was hoping for a video of a bird evolving in front of my eyes.
What kind of pace is human evolution going at? I know through better nutrition and health care we’re bigger, stronger and cleverer generally, but has something really dramatic happened yet? Are babies without an appendix coming soon? What kind of effect will the prevalence of IVF have on natural selection and therefore genetic evolution? I really should just google this, shouldn’t I?
(, Wed 8 Sep 2021, 20:28, Reply)
In a similar way to how the domestication of the dog took evolutionary pressure off our sense of smell, the development of computers and communication technology could be taking pressure off our need to reason and retain information.
(, Thu 9 Sep 2021, 16:23, Reply)
RNA viruses like covid have the highest mutational rates of any organism, there is a mutation every generation on average. they're constantly undergoing darwinian evolution on trillions of allele variations
change accumulate over time and there may be enough that we decide to call it a new species, but it's a fairly arbitrary definition difficult to apply (it's generally based on the ability to produce viable offspring in sexual reproduction, but while you may be able to compare something with existent variants, how do you apply this definition to an ancestor? you cant fuck the past), and with bacteria and virus and asexual organisms we tend not to use the term at all but group them into familial lineages.
Cancer is not a separate organism, and cancer mutations are not passed down to the next generation, though genetic cancer risk might be, unless it's sperm or egg cancer I guess, but that tend to result in infertility rather than mutant offspring.
(, Thu 9 Sep 2021, 0:18, Reply)
The cells within it are not identical as a result of mutations and then selected.
(, Thu 9 Sep 2021, 6:49, Reply)
based on the profound "if something is able to increase itself, there will be more of it". Cancers tend to miss that final step, that of passing it's genes to a new organism, but I seem to recall tasmanian devil had facial tumours that scientist believed were communicable, so perhaps it could evolve
(, Thu 9 Sep 2021, 10:41, Reply)
albeit on the level of populations of cells - being based on mutations in the DNA sequence and selective replication of individual cells with advantageous heritable mutations. The fate of those populations is extinction but then so is the fate of most species
(, Thu 9 Sep 2021, 12:32, Reply)
I know it's a semantic point, and I understand the way successful (in growing) tumours accumulate mutations seem highly analogous to the evolution of organisms, but it's not precisely the same thing. there is no inheritability because there is no path to the future. Its fate is tied to the organism it is part of, and its mutations will not be retained, whether good or bad. As I said, there are a lot of natural process that are analogous to evolution. If I hose gravel, and leave the heavier pebbles and wash away the sand, you could say the gravel evolved a heavier grained mix, in the same way cancer cells that have surface proteins that hide them from T-cell will survive and increase in ratio to those that don't. But the gravel and the cancer cells don't create new organisms that inherit those traits, so it's not strictly evolution. It's just similar to it. the odd tassie devil tumours may be an odd exception, and you could classify it a virus though I'm unclear of the mechanism of spread
(, Thu 9 Sep 2021, 13:11, Reply)
The focus on organisms instead of any type of biological population is too narrow. I'm sure our microbiome undergoes evolution without leaving our bodies. Yes, a lot of semantics is involved to do with the dfinition of species and life (there are still those who argue that viruses are not living things).
(, Thu 9 Sep 2021, 14:33, Reply)
en.wikipedia.org/wiki/Peppered_moth_evolution
(, Wed 8 Sep 2021, 17:39, Reply)